$(document).ready(function() {
    $("#zhuoyin").click(function() {
        url = "zhuoyin.html";
        window.open(url, '_self');
    });
    $("#aoyin").click(function() {
        url = "aoyin.html";
        window.open(url, '_self');
    });
    $("#index").click(function() {
        url = "index.html";
        window.open(url, '_self');
    });
});